a) H₂O and CO₂ radial variation in the Seth-Hapi region, along the profile indicated by the dashed line in Fig. 4c. b) The same as in the panel a for the region Hatmehit-Bastet, along the profile in Fig. 4d. c) CO₂ to H₂O ratio in the Seth-Hapi region, obtained from the single profiles in the same region shown in panel a. d) The same as in Panel c) for the CO₂ and H₂O profiles retrieved in Hatmehit-Bastet region.